41 research outputs found
Studies on the population biology of ornithogalum umbellatum L. (liliaceae) for elaboration strategy of the species survive in Transcarpathia
A vĂĄllalati vagyon Ă©s a finanszĂrozĂĄs összefĂŒggĂ©sei a vagyonĂ©rtĂ©kelĂ©s szempontrendszere szerint
The availability for financial sources can be the key factor of competitiveness of enterprises. Under favourable conditions it can result in not only economic growth and conjunctural effects but indirectly it also has a positive influence on social level as well. In the first part of the article we make an overview on enterprise financing in both social and economic context and try to give an overall concept. In the second part we analyse the framework of financing, discuss the national and international specifications of financing, and finally, in the third part we analyse the background of enterprise financing based on the principles of asset appraisal.A finanszĂrozĂĄsi forrĂĄsokhoz valĂł hozzĂĄfĂ©rĂ©s a vĂĄllalati szfĂ©ra versenykĂ©pessĂ©gĂ©nek kulcstĂ©nyezĆjĂ©t jelenti, kedvezĆ feltĂ©telek mellett nem csak gazdasĂĄgi növekedĂ©st Ă©s konjunkturĂĄlis hatĂĄsokat eredmĂ©nyezhet, hanem közvetetten a tĂĄrsadalmi folyamatokat is pozitĂvan befolyĂĄsolja. A cikk elsĆ rĂ©szĂ©ben a vĂĄllalati finanaszĂrozĂĄs fontosabb jellemzĆit tekintjĂŒk ĂĄt gazdasĂĄgi Ă©s tĂĄrsadalmi összefĂŒggĂ©sben, törekedve a finanszĂrozĂĄsi viszonyok ĂĄtfogĂł szemlĂ©jĂ©re. A cikk mĂĄsodik rĂ©szĂ©ben a finanszĂrozĂĄs szabĂĄlykeretĂ©t tekintjĂŒk ĂĄt a vonatkozĂł nemzetközi Ă©s hazai elĆĂrĂĄsok tĂĄrgyalĂĄsĂĄval, a harmadik rĂ©szben pedig a vĂĄllalati finanszĂrozĂĄs hĂĄtterĂ©t elemezzĂŒk a vagyonĂ©rtĂ©kelĆi gyakorlat Ă©s szempontrendszer alapjĂĄn
Discovery of the spectroscopic binary nature of the classical Cepheids FN Aql and V1344 Aql
We present the analysis of photometric and spectroscopic data of two
classical Cepheids, FN Aquilae and V1344 Aquilae. Based on the joint treatment
of the new and earlier radial velocity data, both Galactic Cepheids have been
found to be a member in a spectroscopic binary system.
To match the phases of the earlier radial velocity data correctly with the
new ones, we also determined the temporal behaviour of the pulsation period of
these Cepheids based on all available photometric data. The O-C graph covering
about half century shows slight changes in the pulsation period due to stellar
evolution for both Cepheids.Comment: 7 pages, 6 figures, 7 tables, accepted for publishing in the MNRA
The rise and fall of a binary AGN candidate: the story of PSO J334.2028+1.4075
Apparently periodic optical variations of the luminous high-redshift (z=2.06)
quasar PSO J334.2028+1.4075 led Liu et al. (2015) to interpret the variability
as the orbital period of a binary supermassive black hole (SMBH) residing in a
single circumbinary accretion disk. The proposed orbital separation was around
0.006 pc, and the possible inspiral time about 7 yr in the rest frame of the
quasar. Such objects would be of high interest as the difficult-to-find end
products of binary SMBH evolution, and potential sources of low-frequency
gravitational waves. However, extending the time baseline of the variability
study, Liu et al. (2016) later found that the periodicity of PSO
J334.2028+1.4075 does not remain persistent. Foord et al. (2017) did not find
evidence for the binary active galactic nucleus scenario based on Chandra X-ray
observations. The object has also been studied in detail in the radio (Mooley
et al. 2018) with the Karl G. Jansky Very Large Array (VLA) and the Very Long
Baseline Array (VLBA), revealing a lobe-dominated quasar at kpc scales, and
possibly a precessing jet, which might retain PSO J334.2028+1.4075 as a binary
SMBH candidate. Here we report on our 1.7-GHz observation with the European
VLBI Network (EVN) which complements the VLBA data taken at higher frequencies,
and discuss the current knowledge about the nature of this interesting object.Comment: 4 pages, 1 figure, accepted for the proceedings of the 14th European
VLBI Network Symposium & Users Meeting (Granada, Spain, 8-11 Oct 2018).
Proceedings of Science, PoS(EVN2018)09
Three little radio galaxies in the early Universe
Volonteri et al. (2011) found that the number of radio-loud quasars above
redshift 4 calculated from the luminosity function (based upon Swift/BAT
observations) is much smaller than the number estimated from the known
high-redshift beamed sources, blazars, assuming that for every beamed source
with a Lorentz factor of , statistically non-beamed
sources should exist. To explain the missing misaligned (non-beamed) population
of high-redshift sources, they proposed various explanations, involving heavy
optical obscuration and significantly different Lorentz factors at early
cosmological epochs. Our EVN observations targeting high-redshift ()
blazar candidates revealed 3 sources not showing relativistic beaming, but
rather kpc-scale double structures. These three sources have significant radio
emission resolved out with the EVN, while they are compact on
arcsec scale. Our dual-frequency ( and GHz) e-MERLIN observations of
these three sources revealed a rich morphology, bending jets, and hot spots
with possible sites of interaction between the jets and the surrounding medium
at intermediate scales.Comment: 6 pages, 3 figures, 1 table, accepted for the Proceedings of the 14th
European VLBI Network Symposium & Users Meetin
An additive manufactured CubeSat mirror incorporating a novel circular lattice
Additive Manufacturing (AM; 3D printing) for mirror fabrication allows for intricate designs that can combine lightweight structures and integrated mounting. Conventional lightweight structures utilise cubic or prismatic unit cells, which do not provide uniform support at the edge of curved mirrors. We present a new circular lattice based upon cylindrical coordinates and how this lattice has been incorporated within an 80 mm diameter mirror intended for use in a 3U CubeSat telescope. Several design iterations are explored, which include prototype mirrors produced in a titanium alloy and a finite element analysis of the one of the design iterations
On the design principles of peptideâdrug conjugates for targeted drug delivery to the malignant tumor site
Cancer is the second leading cause of death affecting nearly one in two people, and the appearance of new cases is projected to rise by >70% by 2030. To effectively combat the menace of cancer, a variety of strategies have been exploited. Among them, the development of peptideâdrug conjugates (PDCs) is considered as an inextricable part of this armamentarium and is continuously explored as a viable approach to target malignant tumors. The general architecture of PDCs consists of three building blocks: the tumor-homing peptide, the cytotoxic agent and the biodegradable connecting linker. The aim of the current review is to provide a spherical perspective on the basic principles governing PDCs, as also the methodology to construct them. We aim to offer basic and integral knowledge on the rational design towards the construction of PDCs through analyzing each building block, as also to highlight the overall progress of this rapidly growing field. Therefore, we focus on several intriguing examples from the recent literature, including important PDCs that have progressed to phase III clinical trials. Last, we address possible difficulties that may emerge during the synthesis of PDCs, as also report ways to overcome them